Propagation-invariant optical bottles with a flat lens (IMAGE)
Caption
A Gaussian beam is transformed into a Bessel beam using a binary axicon and then reshaped by a flat multilevel diffractive lens into a micron-sized optical bottle beam, enabling long-distance propagation, precise beam control, and simpler, compact optical setups.
Credit
Dr. Andra Naresh Kumar Reddy from Chiba University, Japan
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Cannot be reused without permission.
License
Original content